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d10dc5a06f
We originally put implementation-detail function objects into individual namespaces for `std::ranges` without a good reason for doing so. This practice was continued, presumably because there was prior art. Since there's no reason to keep these namespaces, this commit removes them, which will slightly impact binary size. This commit does not apply to CPOs, some of which need additional work.
65 lines
2.2 KiB
C++
65 lines
2.2 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP___ALGORITHM_RANGES_CONTAINS_H
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#define _LIBCPP___ALGORITHM_RANGES_CONTAINS_H
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#include <__algorithm/ranges_find.h>
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#include <__config>
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#include <__functional/identity.h>
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#include <__functional/ranges_operations.h>
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#include <__functional/reference_wrapper.h>
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#include <__iterator/concepts.h>
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#include <__iterator/indirectly_comparable.h>
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#include <__iterator/projected.h>
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#include <__ranges/access.h>
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#include <__ranges/concepts.h>
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#include <__utility/move.h>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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# pragma GCC system_header
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#endif
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_LIBCPP_PUSH_MACROS
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#include <__undef_macros>
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#if _LIBCPP_STD_VER >= 23
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_LIBCPP_BEGIN_NAMESPACE_STD
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namespace ranges {
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struct __contains {
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template <input_iterator _Iter, sentinel_for<_Iter> _Sent, class _Type, class _Proj = identity>
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requires indirect_binary_predicate<ranges::equal_to, projected<_Iter, _Proj>, const _Type*>
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[[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr bool static
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operator()(_Iter __first, _Sent __last, const _Type& __value, _Proj __proj = {}) {
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return ranges::find(std::move(__first), __last, __value, std::ref(__proj)) != __last;
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}
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template <input_range _Range, class _Type, class _Proj = identity>
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requires indirect_binary_predicate<ranges::equal_to, projected<iterator_t<_Range>, _Proj>, const _Type*>
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[[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr bool static
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operator()(_Range&& __range, const _Type& __value, _Proj __proj = {}) {
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return ranges::find(ranges::begin(__range), ranges::end(__range), __value, std::ref(__proj)) !=
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ranges::end(__range);
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}
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};
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inline namespace __cpo {
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inline constexpr auto contains = __contains{};
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} // namespace __cpo
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} // namespace ranges
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP_STD_VER >= 23
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_LIBCPP_POP_MACROS
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#endif // _LIBCPP___ALGORITHM_RANGES_CONTAINS_H
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